Extended Operation of Stirling Convertors

Roth, Mary Ellen; Schreiber, Jeffrey G.; Pepper, Stephen V.

doi:10.2514/6.2004-5508

Cited by 12 publications

(2 citation statements)

References 2 publications

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“…Helium is used as working gas. Two spaces can be identified: the working space and the pressure vessel, in which the displacer and the working piston move, respectively [92][93][94]. A moving iron linear alternator is used to convert the working piston oscillations in electric power [95].…”

Section: 𝑀 𝑥 = (𝑝 − 𝑝 )𝐴 − 𝐶 + 𝐶 𝑥mentioning

confidence: 99%

Free-Piston Stirling Engine Technologies and Models: A Review

Perozziello

Grosu

Vaglieco³

2021

Energies

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The Stirling engine is an alternative solution to produce cleaner energy in order to achieve the reduction of the fossil fuel consumption and the CO2 emissions. It comprises an external combustion engine that can convert any external heat source into mechanical power, through cyclic expansion and compression of a working gas in a closed-regenerative cycle, with or without driving mechanisms. The free-piston Stirling Engine is significantly preferred because of the absence of any mechanical linkage resulting in longer operating life, lower noise pollution, maintenance and vibration free, self-starting and high thermal efficiency. The aim of this paper is to summarize the research works on the free-piston Stirling engine technologies and models. First, the working principles of the free-piston Stirling engine are described, identifying different configurations. Then, several applications are presented. Finally, a detailed review of the models available in literature is given, pointing out the main assumptions and equations.

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Section: 𝑀 𝑥 = (𝑝 − 𝑝 )𝐴 − 𝐶 + 𝐶 𝑥mentioning

confidence: 99%

Free-Piston Stirling Engine Technologies and Models: A Review

Perozziello

Grosu

Vaglieco³

2021

Energies

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“…NASA Glenn Research Center (GRC) has been supporting LMA's development of the SRG110 3 . Exploration missions that may utilize the SRG110 could involve continuous operation of the generator for upwards of 14 years.…”

Section: Introductionmentioning

confidence: 99%

Extended Operation of Stirling Convertors in a Thermal Vacuum Environment

Oriti

2005

3rd International Energy Conversion Engineering Conference

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Final Results for the GRC Supporting Technology Development Project for the 110-Watt Stirling Radioisotope Generator (SRG110)

Schreiber¹,

Thieme²

2007

AIP Conference Proceedings

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Abstract. From 1999From -2006, the NASA Glenn Research Center (GRC) supported the development of a high-efficiency, nominal 110-We Stirling Radioisotope Generator (SRG110) for potential use on NASA missions, including deep space missions, Mars rovers, and lunar applications. Lockheed Martin (LM) was the system integrator for the SRG110, under contract to the Department of Energy (DOE). Infinia Corporation (formerly Stirling Technology Company) developed the Stirling convertor, first as a contractor to DOE and then under subcontract to LM. The SRG110 development has been redirected, and recent program changes have been made to significantly increase the specific power of the generator. System development of an Advanced Stirling Radioisotope Generator (ASRG) has now begun, using a lightweight, advanced convertor from Sunpower, Inc. This paper summarizes the results of the supporting technology effort that GRC completed for the SRG110. GRC tasks included convertor extendedduration testing in air and thermal vacuum environments, heater head life assessment, materials studies, permanent magnet aging characterization, linear alternator evaluations, structural dynamics testing, electromagnetic interference (EMI) and electromagnetic compatibility (EMC) characterization, organic materials evaluations, reliability studies, and development of an end-to-end system dynamic model. Related efforts are now continuing in many of these areas to support ASRG development.https://ntrs.nasa.gov/search.jsp?R=20070017911 2018-05-10T11:26:55+00:00Z

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Extended Operation of Stirling Convertors

Cited by 12 publications

References 2 publications

Free-Piston Stirling Engine Technologies and Models: A Review

Free-Piston Stirling Engine Technologies and Models: A Review

Extended Operation of Stirling Convertors in a Thermal Vacuum Environment

Final Results for the GRC Supporting Technology Development Project for the 110-Watt Stirling Radioisotope Generator (SRG110)

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